<input nz-input [(ngModel)]="value" (ngModelChange)="_handle()"
  [placeholder]="placeholder" class="ant-transfer-list-search">
<a *ngIf="value && value.length > 0; else def" class="ant-transfer-list-search-action" (click)="_clear()">
  <i class="anticon anticon-cross-circle"></i>
</a>
<ng-template #def>
  <span class="ant-transfer-list-search-action"><i class="anticon anticon-search"></i></span>
</ng-template>